The latter. The 400m Brownfield Fund to Mayoral Combined Authorities plus 100 million elsewhere announced in 2020 one year spending review (but 4 year programme), totals 4bn over 4 years. Over the 4 years of the 2021 CSR the 4bn leaked to BBC today amounts to eeer 4bn. In other words not a penny extra for brownfield housing. Pretending to switch priorities, no switch.